Thread: 6.5x55 SE Sanity Check

Originally Posted by Jhon

Pressure and velocity do not run hand in hand. A lower velocity load may have higher pressure, or even a pressure spike, for a number of reasons.

Just some clarification on my prior statement. It is specifically referring to two cases with similar volume (<10% difference) running the same powder. Correct me if I'm wrong but unless you have an under fill situation (below book minimum) or are seeing pressure signs the relationship is close to linear. I know there are some powders which are notorious for pressure spikes but I believe 2209 and 2213SC aren't.

PS: Also haven't jammed the bullet into the lands, or compressed the load.